Remove "Back to the shop" from the my account menu. Switch between "My account" and "Back to the shop" on the main menu.
Update the ancestorClass in the backend menu
Fix safe_label option in menu template.

Original knp_menu label allows unescaped html. Sylius override lost this ability, this commit restores it.
Merge pull request #334 from Richtermeister/fix-menu-template

Fix safe_label option in menu template.
Fix Image placeholders

 - avoid usage of placehold.it images together with image filter,
   because image filter does not (currently) work with remote URLs.
 - ensure placeholders have proper size.
 - add missing alt tag content on images.
Merge pull request #344 from Richtermeister/fix-image-placeholders

Fix Image placeholders
Merge pull request #331 from edwines/ancestor

Update the ancestorClass in the backend menu
Merge pull request #319 from jjanvier/fix/account-menu

Enhance main app menus to make them more consistent